supergiant

[n] - an extremely bright star of very large diameter and low density
Found on http://www.webdictionary.co.uk/definition.php?query=supergiant

Supergiant

A star with a higher luminosity and a larger radius than a giant of the same spectral classification. It will have typically one hundred times the luminosity of a giant. It will almost certainly become a supernova. Blue SupergiantA supergiant star with spectral type O or B. Red SupergiantA supergiant with spectral type M. These are the largest star...
Found on http://www.diracdelta.co.uk/science/source/s/u/supergiant/source.html

supergiant

noun an extremely bright star of very large diameter and low density
Found on http://wordnetweb.princeton.edu/perl/webwn?s=supergiant
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